Polossi 220?

[Spanish Fly]

So can a Polossi be done with the new alloy cylinder?

Yes.

SF

[225worb]

I didn't think that was enough power. Are you are 8 stone and on a cut down with drop handlebars?

Not enough power for what ???? BHP doesn't = speed !!!
15.5 stone full frame with drops ....

[Jack221]

Have you run yours on a dyno many times? A big lad doing a true 85mph indicated on a GPS with a full frame PX you need a lot more than 26 bhp. I think yours might be way more powerful than you think. Or you have the torque of a tractor!
Whats your set up exactly? Port timing durations, compression, head, carb, jetting, exhaust, max CHT temperature, gearing, etc. If its all on here somewhere already just add the link.

[225worb]

Have you run yours on a dyno many times? A big lad doing a true 85mph indicated on a GPS with a full frame PX you need a lot more than 26 bhp. I think yours might be way more powerful than you think. Or you have the torque of a tractor!
Whats your set up exactly? Port timing durations, compression, head, carb, jetting, exhaust, max CHT temperature, gearing, etc. If its all on here somewhere already just add the link.

Aye up Jack !
I just have to breathe in when I put me head down
im running what was originally an group 6 Malossi 210 race motor From a very long time ago but worked very well...
Originally (don't know the port timings ) it ran a one off reed that sat right on top of BOTH sides of the casings so the cases had been modified a lot,heavilly moded reed crank, hand made pipe 30mm phbh , gear kit..That was basically it
After Mark sargent stop racing it and mate from the Demons use to sprint it then Soooosh (on her) sprinted it and if I remember rightly HAD the sprint record at York !!!
Anyways ive since stroked to 60mm, worb top end, watercooled head ah and new cases as I split them both sides
its not tuned to the hilt and still pretty old skool but has always worked, pulls all through the gears really well cruises at speed, Al Diablo and sticky have given it a raz...

[Jack221]

Do you know the story of "trigger's broom"? I always think once you have changed both the engine casings its really a different engine!
Your set up seems to now be like a tourer. Ever thought about re-tuning it to make that water cooling really work hard!

[H,POOL GADGE]

Jack221, you normally get a reply! If ye say your full of s**t!!!! Gps'd @ 85mph....well i !!!!!

[225worb]

Do you know the story of "trigger's broom"? I always think once you have changed both the engine casings its really a different engine!
Your set up seems to now be like a tourer. Ever thought about re-tuning it to make that water cooling really work hard!

Answer for everything !!!!
Of course the engines different if the cases have broken beyond repair.....
Do you actually tune or build engines ??? Hmmmmmmm